Thermostatic valve



Juhe 12, 1923. I 1,458,813

J. L. FERRIS THERMOS TATI C VALVE Filed April 18, 1922 2 Sheets-Sheet 1 Jsse I.Ferri& j 7 am W ilfiys.

JunelZ, 1923.

r J. L. FERRIS THERMOSTATIC VALVE Filed April 18, 1922 2 Sheets-Sheet 2 Inventor! and which after PM June 12, 19.23.

UNITED STATES PATENT owes.

amen 1.. mars, or roar nonea, Iowa.

mascara-no vanvn.

Application filed A ru m, me. we no. Maia.

- ments in automatic valves designed to control the flow of steam through radiators and hence to automatically regulate the action thereof. The invention aims to provide a simple form of device which may be easily and economically manufactured, may be readil applied to any ordinary valve casing, whic may be easily and accurately adjusted to any desired steamagressure or tem 'erature justment will proo, against being tampered with by unauthorized persons. The invention further aims to rovide a construction which will be capa 1e. of a wider range of adjustment than with previous devices of which I am aware, thereby adapting it for greater variations in temperature, which will give greater pressure in the seating of the valve and WhlCh will nevertheless insure the valve movin in a rectilinear path and in alignment with the valve seat.

With these and other objects in view, the

invention includes the novel construction and arrangement and combination of parts hereinafter described and particularly de-- the appended claims, reference befined b ing had which Fig. 1 is a central transverse vertical section through a valve constructed inaccordance with my invention.

Fig. 2 is a plan view with the cover of the casing removed.

Fig. 3 is ber taken at right angles to Figs. 4, 5, an tion. p Referring by reference characters to this to the accompanying drawings in Fig. 1. 6 are views of amodificaa view of the thermostatic mem drawing,'the numeral 1 designates a steam chamber or valve casing having a threaded nipple 1 designed to be connected to a steam r ator (not shown) in the manner well understood by those skilled in the art, and having at the bottom a ni' ple 1 for connection to the return pipe 2 or the water of condensation. A valve seat member 3 is provided within the valve casing and secured in a suitable manner, such as a threaded nip le connection 3 as shown in Fig. 1,' the va ve seat of'which is designed to cooperate with the valve 4. The valve seat member is elongated. horizontally and the ends are prom ed with lugs 3 to which are connected the lower ends of vertical standards 5, which are designed to supportthe thermostatic valve can in means in the manner hereinafter describe Preferably the standards are connected at the top by a transverse member 5, and themost conven-' ient manner-of forming these standards and connectingbmember is to make them integral and of su lower ends of the standards bein secured to the ends of the valve seat mem rin any suitable manner. A desirable form of connection is to provide the ends of the valve seat member with vertical channels in which the ends of the standards are seated, the standards being secured in place by set screws 5" and the side flanges or walls of the channels serving to relieve the screws of strain.

The standards 5 are provided with brackof members 6, prefera ly of substantially L-shape, which are adjustably secured to stantially inverted U-shape, the

the standards by means of set screws 7 adapted to pass through any one of the gluralit of openings 5 in the standards. refera ly the brackets are of channeled form where they contact with the standards prevent any y reheving brackets in reverse directions.

To these free ends are rigidly connected angle members 9 havinportions 9 rigidly united to the idea en of the springs by riveting, brazing or both, these 1e membore 9 extending inwardly into approximate alient with the valve stem 4 of the valve 4. The ends 9 of said inwardly extending portions of the members 9 are rigid- 1 connected by riveting, brazing or both, to the inclined ends of similar thermostatic members 10 which therefore lie in approximate alignment with each other and with the valve stem, and which thermostatic members are curved outwardly, downwardly and upwardly to brin their free ends into proximity to the vs vs stem and approximately parallel thereto on opposite sides thereof. To the valve stem is ad ustabl connected a valve carrier 12, the preferre form of adjusteble connection being. to provide the valve stem with an external screw thread which engages a screw threaded opening in the valve carrier, a lock nut 13 being provided to lock the parts against relative movement. By loosening the lock nut and screwi the valve stem up or down, any desired admstment relative to its carrier may be readily secured. Lug members'ld are rigidl secured to the free ends of the last named t ermostatic springs, which lug members are respectively pivota ly connected to the opposite sides of the valve carrier, refer-ably by providing the lug members w't h ears 1% which overlap the sides of the ends of the valve carrier and are provided with openings aligning with openings in the valve carrier, through which pivot pins 15 are passed.

In this form the thermostatic members or springs 8 are composed of laminations of brass and steel with the brass on the outside, while the members 10 comprise similar laminations with the steel on the outside, whereby incur a differential action.

In the form shown in Figs. 3, d and 5 I support the springs 8* from the top horizontal member 5, and the springs l0 from the 'free ends thereof by similar bracket mem- In. this form I bifurcate the ends of the valve carrier to provide cars a: between which the small lugs attached to the free ends of the springs 10 are pivotally secured by pins as shown.

In this form I prefer to make the springs neeaei all wih steel on the outside,

laminated construc- I thereby incu a commutative action instead of a difierential action.

l also provide for adjustment in this modification by adjustably connecting the lower ends of the standards to the valve seat memher by roviding the standards with a pluralit: 0 holes 5 for the attaching screws.

atlclaimis:

l. in a thermostatic valve for the :g -ra described, a valve casing having a V vs seat, a pair of reversely curved thermostatic members located on opposite sides of a plane passin through said valve seat and having ri'gid y supported ends and free ends, a second pair of reversely curved thermostatic members located in substantial alignment and between said first named members, and having ends rigidly connected with the free ends of said first ned members a valve carrier to which the free ends of said second members are pivotall connected, and a valve adjustably carrie by said valve carrier.

2. In a thermostatic valve for the purpose described, a valve casing, a valve seat member therein, a pair of thermostatic springs having ends adgustably supported from said valve seat member and having free ends, a second pair of thermostatic springs havin ends rigidly connected with the ends of sai first named springs, and having free adjacent ends, a valve carrier havin pivotal connection with said free ends, and a valve carried by said carrier.

3. In a thermostatic valve for the purpose described, a valve casing, a valve seat member therein of elongated form having upstanding lugs, standards secured to said lugs thermostatic springs supported from sai standards, a valve earner connected with said springs, and a valve having a stem adj ustably supported by said valve carrier.

4. In athermostatic valve of the class described, a valve casing and valve'seat, standards located on opposite sides of said valve seat, curved thermostatic members located adjacent said'standards and having ends connected thereto and free ends, curved thermostatic members locatedin a plane intermediate the plane of said first named members and having ends rigidly connected to their free ends, and havin adjacent free ends, a valve carrier pivota y connected with-said adjacent free ends, and a valve adjustably carried by said valve carrier.

5. In a thermostatic valve a valve casing and valve seat, a frame of substantially invented U-shape within said casing, a double set of curved thermostatic members supported from said frame, a valve carrier supported by said members, and a valve adjustably carried by said carrier.

6. In a thermostatic valve, a valve casing a valve seat member having a nipple tapped v into the outlet of said casing and having a valve seat, said member having lateral extensions provided with channeled ends, standards secured in said channeled ends, 5 thermostatic springs supported by said standards, and a valve adjustably supported from said springs.

7. Ina t ermostatic valve a valve casing having a valve seat, parallel vertical standards within the casing and su ported from the bottom thereof, brackets aving channeled sides fittin and secured to saidstandards, thermostatic springs supported from said standards, and a valve supported by 7 said springs.

In testimony whereof I aflix my signature.

JESSE L. FERRIS. 

